The prevalence of malocclusion in China--an investigation of 25,392 children

Abstract

Objective: To investigate the prevalence of malocclusion in China.

Methods: Based on individual normal occlusion and Angle's classification of malocclusion, standard investigation form was made. 25,392 children of different dental ages were evaluated by orthodontic professionals.

Results: The prevalence of malocclusion among Chinese children was 67.82%. The prevalence of malocclusion among children with different dental age and the proportion of the different types of malocclusions were revealed.

Conclusion: The prevalence of malocclusion among Chinese children had increased from 40% to 67% over the last 40 years.